Slide 9 | ![]() | ![]() | ![]() | Gene Mutations |
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Genes can be altered, or mutated, in many ways.
The most common gene change involves a single base mismatch--a misspelling--placing the wrong base in the DNA. At other times, a single base may be dropped or added. And sometimes large pieces of DNA are mistakenly repeated or deleted.
![Gene Mutations](https://webarchive.library.unt.edu/web/20121017214207im_/http://www.cancer.gov/PublishedContent/Images/images/documents/2bb8687b-eb2b-4e62-ba30-a0572dee414e/cancer10.jpg)